error timeout on write and read VISA

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  Try to use functions DAQmx directly rather than the DAQ Assistant.  They are a little more work to learn but are more effective.  Your 6211 can generate a PWM signal in hardware, so use it (see examples of LabVIEW).  Finally, of course there will be some delay in your code.  You read to 1.5 k samples to 1 k/second, so each loop cycle will be 1.5 s.

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• At the same time perform write and read

  Hello

  I use
  DAQmx NOR-USB-6259

  I have problem with parallel
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  Best regards

  AndrzejS

  Hi Andrzej,

  Yes, it's possible, but with your device not at the same time, just with a little delay (about 1 US).

  The track is almost the same thing, you need to add 2 more channels of analog inputs to your task and use playback of multiple samples. Just check the VB Clk Acq - Int example.

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• fundamental question of write and read.vi series

  I downloaded the basic_serial_write_and_read.vi so that I can learn how to make my VI communicate through series.  Why the example diagram shows the resource name VISA, baud rate, parity, etc. as small rectangles, but when I go to create my own vi and the attempt to put what I think, it's the same controls down, they appear as squares of normal sizes?  I have chosen the wrong controls?  I do not know how to attach a file, or I will show you my vi.

  Tron

  What you call "normal sizes squares" is called the display icon and for those of us who use LabVIEW for awhile, there is nothing normal in their subject. You can right click on any of these and check/uncheck the "view as an icon. To place all the controls/indicators on the scheme in the form of smaller objects, go to tools > Options > block and uncheck "terminals in front Place as icons.

  PS why you download this example? It is part of the examples provided with LabVIEW.

• How to write and read from the cache in Labview?

  
  

  Hello

  I would use "the spreadsheet file reading" to read serial numbers stored on your hard drive. If your file has each serial number on each line of reading spreadsheet file will return an array of 2D with the first column containing numbers. Then use 'Index Array' to get a 1 d of your serial numbers table. In your loop, you will then use VI 'Picture 1 d of research' to check if the SN is in the table. It returns-1 if its not found. If to use build table to add the serial number. Then use 'Write the spreadsheet file' to save the new list of serial number in line.

  Hope this helps

• Error timeout on VISA read during program execution

  In my application, I need to read an instrument via a USB serial COM (a Heidenhain ND 280).

  When I run a single VI that comes write and read the data it works very well (see attachment). But when the main Vi runs and this runsin a Subvi, it always gives error timeout on read VISA after awhile. I do not understand what can cause that.

  EDIT: in fact even alone, it give a time-out error after awhile. I just let it run for 30 minutes and he gave one. Just more time in appen, it seems that when the program runs.

  Thank you

  
  

• Write a question about basic series and Read.vi

  I tried to use the base series write and Read.vi to simulate the funtion of Hyperterminal, communication between the pc and the device via COM port. The question I have is, when I open the vi, under the name of resource VISA option, I don't think my device used COM port. I clicked on the button refresh, but always, always shows only COM1. And when I entered the hand COM7 (what I used) and click Run, it would show the error message: "invalid resource specified, Parsing error."

  Can someone help me with this problem? Thank you very much.

  Not a big fan of McAfee, but I do not know if it is charged. There is a KB article on how to solve this problem.

  Until address you and ports appear in MAX, you will not be able to use the ports in LabVIEW.

• Can't write series base and Read.vi to run

  Hello

  It is a strange problem because I used this .vi including several times before and never had a problem until I have created LabVIEW on my new laptop computer. I installed everything like I should without a problem, but for some reason when I try to run, I get the message:

  "Error-1073807343 is produced in property node (arg 1) visa set up a Serial Port (Instr) .vi-> basic series write and Read.vi.

  Possible reasons:

  VISA: (Hex 0xBFFF0011) insufficient location information or the device or resource is not present in the system. "

  I tried to find the error in the forums, but never, it corresponds to what I do and I can't find a solution. It is a problem serious because I'm on a timeline by hand in a project. Please notify.

  Thank you

  Yusif

  Stupid question - is the correct port selected for your new laptop? It's maybe something like com5 instead of com1. Do you see the port in Windows Device Manager?